Combined clothes washer and drier



March 10, 1931'.` J. c. NELSON ET AL 1,795,733l

COMBINED CLTHES WASHER AND DRIER original Filed May -"l, .1925 5sheets-Sheet 1v /nvt-N-Tans" 2,' C. JYdAfr/v *f4 v Arran/vers March "l0,1931. J. c. NELSON ET A1.' 1,795,733

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rraRA/Eys @ZJ/W# March l0, 1931` .-1. c. NELSON ET AL COMBINED CLOTHESWASHER AND DRIR Original Filed May '7, i925 fSheets-Sheet. 3

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WWA/55 March l0, 1931. J. c. NELsoNi-:T Al.

` COMBINED CLOTHES WASHER` AND DRIER originalVA 'Filed May 7,-1925 vSweets-sheet 5 /Nv/v Ta/s C -JY w Y A Trap/vers mr n /llllll/ PatentedMar. 10, 1931 UNITED' STATES. PATENT yCF1-*ICE JABEz c. NELsoN AND PETERE. eELnIIoE, or' sYEACUsE, NEW Yonx, AssIeNoEs 'ro sYEAcUsE WASHINGMACHINE CoEroIwrIoN; or smCUsE, NEW You, A con.

. 15 v of which may be controlled from asingle POBATION 0F DELAWARECOMBINED CLOTHES WASHER' AND prima original application mea may '1,1925,

This invention relates to a combined clothes washer and centrifugaldrier involving the use of juxtaposed upright containers mounted uponasingle supporting frame and containing the washing and dryingmechanisms respectively adapted to be driven from the same source ofoWer which is mounted upon the frame prefgrably in a plane directlybeneath the containers.

This application is a division of our application on a Combined clotheswasher and drier, filed May 7 1925, Serial No. 28,564, now Patent1,720,851, grantedJuly 16, 1929.

The main object of our invention is to provide a centrifugal clothesdrier, the operation point. e

' Another object is to provide a drier of this type in which the coverwill be locked in .position when the operating handle has been adjustedto cause the operation of the device.

Another object is to provide a mechanical means whereby' the movement ofthe drier will be stopped when the operating power has beendisconnected.

Other objects and advantages relate to the size, shape and arrangementof parts, all as will more fully appear from the following description,taken in connection-with the accompanying drawings in which v Figure 11s a top plan of a-combmed clothes washer and centrlfugal drierembodying the various features of the invention except that the coverforv the washing-vat lis removed to show the interior washing mechanism,a portion of alaundry traybeing also shown di rectly underthe outer edgeo the drain board ofthe drier. l

. Figure 2 is an enlar ed transversevertical sectional view, p artlyroken away,.taken onl line 2 2, Figure 1.

Figure v3 isv an enlarged detail sectional view taken o-n line-3 3,igure 1.

Figure 4 is an enlarged vertical sectional view, partl l broken awaytaken on line 4 4, Figure 1, t e laundry tray being omitted.

Figure 5 is an`- enlar ed detail sectional view taken in the plane oline 5 5, Figure 4.

Figure 6 is a horizontal sectional Aview taken in the plane of line 6 6,Figure '4,

" washin lar Serial No. $28,564.l Divided and tliil application iiledJanuary 84,

1928. Serial No. 249,038.

fmainly in a plane below the containers for thev washing and dryingmechanisms but showing in addition the full tripod construction of theframe, the motor and the'conduits for the circulation of the washingfluid from one container to the other and the'dischar enozzle leadin tothe exterior of the mac ine.

Figure is an enlarged Vertical sectional view taken in the plane of line7 7, Figure 6.

Figure 8 is an enlarged transverse sectional view of the pump taken inthe plane of line 8 8, 'Figure 6,

' Figure 9 is an enlarged top plan of the cap for the revoluble clothescontainer of the centrifugal drier.

Figure 10'is anenlarged detail sectional View taken on line 10 10,Figure 1.

Figure 11 is an enlarged vertical sectional view taken on line 11 11, Fire 1.

Fi ures 12 and 13 are enlarged detail sectiona views taken respectivelyin the planes of lines'l2-12 and 13 13, Figure 6.

As illustrated, this machine comprises a main supporting frame of thetripod type having a substantiall horizontal platform 1 carried by a purality of, vin lthis instance', three le s 2- which are arran ed at theangles o an isosceles triangle an in addition to being secured to theplatform 1 by bolts 3 are also connected to each other some distancebelow the platform by braces -4 and 4 extending/along the sides of thetriangle and havingv their ends secured to the legs by bolts 5 The lowerends of the legs are provided with castors 2 adapted to rest upon theiioor to permit the machine as a whole to be moved from place to placealong the'iioor as may be more convenient for the operator as, forexample, when using the machines in connection with stationary laundrytrays in a manner. hereinafter described. v

The platform 1 is ofsuiiicient horizontal area .within its marginal edgeto re-` ceive and support a relatively large circular vat or tub 6 and arelatively small clrcular drier vat or tub 7 side by side in fixedrelation to each other with the er vat nearest the base of the trianglethe" smaller vat nearer the apex of the izo fia

" :triangle and the axes of both vats in a vertical-plane bisecting theangle at the apex of the triangle and thereby passing throu h the baseof the triangle midway between the adjacent angles.

The vertical axes of the' vats -6- and -7- are wholly within thetriangle so that the angles at the base of the triangle will lie invertical planes substantially coincident with the adjacent sides of thevat -6- and at equal distances from the axis thereof while the angle atthe apex of the triangle will be in a verticalplane substantiallcoincident with the corresponding side of t e periphery of the vat -7-and, therefore, the legs 2- which are secured to the angles of thetriangular bracing frame may be substantially straight vertically andsecured to the adjacent portions of the peripheries of the vats 6 and-7- and also to the adjacent portions of the perimeter of the platform lwhich follows closely the circular outlines of both vats.

The object of this triangular su porting and bracing means for thecombined washer .and drier is to bring all of the mechanisms to bebrought into a unitary structure supported on the door at three bearingpoints for stabilizing purposes and also to reduce to a minimum anyvibration incidental to the joint or independent operation of both theWashing and drying mechanism or either of said mechanisms separately, aswill be hereinafter more fully explained, it being understood that theplatform -1- serves as a rigid tie connection between the two vats 6 and-i7 to. hold them against relative movement and in diierentiating thedrying mechanism from the washing mechanism, it will be observed thatthe distinction is only nominal, the washing mechanism being employed toloosen the dirt and other foreign matter from the clothes by alternatepressure and suction while the centrifugal dryin mechanism serves thedouble purpose o freeing the dirt and other foreign matter in solutionfrom the clothes and also for drying the clothes so that the latter mayreasonably be termed a supplemental washer as well as a dried, Werkingmechanism ln addition to the vat -6- the washing mechanism comprises aplurality of, in this instance, two inverted cup shaped dashers or cupsA8-f operatively connected to a yoke 9 which, in turn, is adjustablymounted on a vertically mounted plunger -10-, the latter beingreciproeably movable in a suitable gland l1 in the bottom of the vat 6co-axial therewith while the cups ,-`8-' are mounted upon the yoke -9-at one side of said axisfor engagement with the clothes and washingfluid in the vat as the plunger and cups are Areciprocated vertically.

Any suitable means may be employed for imparting vertical reciprocatorymotion and also rotary motion tothe upright shaft or plunger l0- saidmeans being partially shown in the drawings as consisting of an electricmotor l2- secured to the underside of the platform --land having itsarmature shaft -13- connected a universal joint -14- to a co-axial sha t-15- which is journaled in a suitable gear case -16- on the underside ofthe platform --1-, said shafts -13- and -15--4' being located at oneside of the axis of the vat -6- and parallel with a direct line betweenythe axes of both of the vats -6- and -7-.

ter shaft v-QO- so as to permit the ear and pinion to rotate relativelyto said s aft for a purpose presently described.

rlhe pinion -19- meshes with a relatively large gear -21- which isloosely mounted upon a crank shaft 22- for relative rotary movement andalso has an independent axial movement into and out of clutchingengagement with a clutch member -23- having an elongated hub journaledin a bearl ing -24- in the adjacent end of the gear case -16- andcarrying at its outer'end a crank arm -25-.

rlhe hub of the clutch member -23- together with the crank arm -25- arekeyed to each other and to Athe shaft -22- by means of a key or pin-26.-, Figure 6, to cause those parts to rotate in unison.

The crank arm 25- is operatively connected in any Vwell known manner tothe intermediate portion of a rock arm-or leverl -27- extending radiallyto and at one side parted to the rock arm or lever +27- forreciprocating the plunger -10- and thereby effecting a correspondingreciprocatory movement, of the yoke -9- andcups 8- carried thereby. v

A coiled spring,29- may be connected in any well known manner to thelever 27 and to the frame ofthe machinefor retracting the inner end ofthe lever and parts carried thereby upwardly and'thereby assisting themotor in lifting those parts.` v The counter shaft '-20- is locatedbeiso said axes while the driving. shaft and crank shaft -22- arelocated at opposite sides of and parallel with the counter shaft and,therefore, at opposite-sides of the vertical axis of the vat 6 andplunger l0- while ,the motor @l2- and gear case 16 containing the geartrain connections between the driving shaft --15A and lever -27- arealso located at opposite sides of studs 3lon clutching engagement withthe clutch member-23- and for this purpose is provided with aperturesthe member -23- when the two parts are brought together fortransmitvided with an annular groove -32- for-reting motion from thepinion -19- to the crank shaft 22.

The hub of the clutch gear -21- 1s proceiving a shifting member 33 whichis connected to one end of a shifting rod -34,

Figure 6, said split rod being mounted in a suitablev bearing in theadjacent side of the gear case -16- and having its outer end connectedto one end of a shifting 'lever This lever -35- is pivoted at 36 to thegear case -16- and has its other end connected by'a -38- on the lowerend lof an upright tubular shaft -39-, Figure 2.

The tubular upright shaft-39eextends upwardly along the outside of andin close proximity to thevat -7- and has its lower end journaled in asuitable bearing "-40- on the platform 1-'- and its upper end providedwith a hand lever #-41- secured thereto for rocking -said shaft aboutits axis and thereby transmitting axial motion. to the clutch gear V-21through the medium of the link -37-, lever -35- and shifting rod -34--for engaging and disengaging said gear clutch with the clutch member-23-.

It is now evident that while the motor l2- is in operation positivemotion lwill be transmitted to the gear clutch -21 and that if the handlever -41- is shifted in one dir ec-- tion the clutch gear 21ewill beforced into engagement for 'operating the crankshaft -22- and therebyreciprocating the plunger j l0- with the cups -8- thereon for washingpurposes while on the other hand if the hand lever 4lis shifted in theopposite e tov stop the reciprocation o -30-' adapted to receive,

link w37- to a crank arm leakage of water from the bottom of thedirection the clutch gear 21J will be withdrawn froml engagement withthe member -23- to be operated independently thereof the plunger andparts carried thereby.

omfagaz amr I An upright c lindricalcage 42- is'rotatably mounte withinthe vat -7-1- coaxial therewith but clear from the walls thereof toavoid friction therewith and comprises a rforated shel1j-43- having itslower en se- A cured to a circular supporting plate or bot'- tom +44-and its upper end provided with f a concavoconvex lid -45-f removablymounted thereon, lbut frictionally engaged therewith to be rotatedthereby in lav manner hereinafter described.

T he counter shaft *20- is connected by sion shaft.-20- which isjournaled in' one connected by a beveled gear -48- and in- Aion -48- toan upri ht shaft -50- w ich is journaled in a sulta le gland-51, in theplatform -1- coaxial with the axis of the cage 42- and has its oppositeend provided with a hexagonal or other angular head -l-52- engaging in asimilarly formed angu- -lar recess +53- in the bottom plate-44:- fortransmitting rotary motion from said upright-shaft -50fto the cage42`and rmittng saidcage to be removed from the ead ,-52- by upwarddisplacement lwhen desired.. j

The gear case [,-47- is secured to the un-y derside of the platform '-1-as shown in Figure 4 and is provided in its lower side with anadjustable and thrust bearingscrew -54 for the lower end of the uprightshaft '-50-l and thereby to hold the rotary head 52 out of frict1ona1engagement with the upper end of the gland -51- which is preferably ofthe stuing box type vto prevent vat side of a gear case'l-47- and isoperatively Suitable means' is provided for controlling the operation ofthe centrifugal drier mechanism independently of the washing mechanismwhile the motor is in operation and, as previously stated, the gear-18-, which is driven continuously by the motor through the medium ofthepinion-17-, is loosely mounted upon the shaft -20- to rotateindependently ythereof and is provided with a conical clutch face 55.-adapted to be engaged by a conical clutch member -56- on one end of 20-and thencethrough the shaft -20` and gears and -48- to the upright -58-for frictionally engaging the vat -6- and may `by brazing or othersuitable fastening means rigidly secured by brazin shaft 50 for rotatingthe cage -,-42', the clutch member -56- bein riveted or otherwisesecured to the hub o the brake drum -57-, as shown in Figure 4.

The brake drum -.57- is rovided with an outwardly projecting annu ariangejhaving a friction washer -57- of fibre or e uivalent materialadapted `to be engaged y a gramas A tion of the centrifugal drier cage4Z-'is provided with an extension 68 movable into and out of engagementwith the upper face of the adjacent side of the lid 70` for lockingsaidlid in its closed position 4when the lever -68 is adjusted to cause therotation ofthe cage 42- and to release said lid when the lever isadjusted to stop the opbrake shoe -59- constituting a part of theferation of the cage, but the lid -70-` cannot clutch shifting means. V

An upright rock shaft is j ournalled in suitable bearings in the gearcase -16-, Figure 6,` and has its lower end provided with a crank armGlpivotally connected at -62-to the brake ring -59- and its upper endro-k vided with a crank arm -63 connecte by a link 64kto a crank arm-65- on the lower end of an upri ht rock shaft 6G- which extendsvertical y through the tubular shaft -39- coaxial therewith and has itsupper end journaled in the adjacent side of a frame -67--and is providedwith a hand lever 68- by which it may be turned for shifting the clutchlmember -56- into and out of clutching engagement with the clutch gearl8- and also for moving the brake ring 59 into and out of enga ementwith the7friction face -57- of the -5 The frame -67-. embraces a ortionof the periphery of the upper end o the washing rigidly secured theretoralre drum and extends entirely around lthe upper end of the drier vat-47--4to which it may be also or otherwise .to form a rigid tie betweent e upper ends of both vats for holding them in fixed relation, saidframe being provided with a central cylindrical opening -69- ofsufficiently large diameter to permit the cage 42+ to be withdrawntherethrough by u ward displacement when desiredor re lace by downwarddisplacement into inter ocking engagement with the drivin head -52-.

A lid or cover 0- for the opening -69- is hinged at one side at -71- tothe frame -67- at a point beyond theadjacent side of the vat -.7- andwhen closed is adapted to engage the upper inner faces of the walls ofthe openinu -69- to form a substa-ntially water-tight joint therewith orit is held in place by a locking bolt -7Y2- and spring -73-, Abothguided in a bushing 74- in ther adjacent side of the frame -67-, theouter end of the bolt being pro- Y vided with a handle 75- by which itmay be withdrawn from its locking position against the action of itsretracting spring -73-., Figure 3.

" The lid 70 is also concavo-convex in cross section and is provided atthe side nearest ,the lookin bolt -72 with a handle The lever --68-which controls the operabe raised until it is further unlocked by thewithdrawal of the bolt -72- thereby reducing the liability of openingthelid while the cage with the clothes therein is lbeing rotated,y itbeing understood that when the lever -68- is adjusted to stop the rota.-tion of the cage it will be necessary to withdraw the bolt -72- torelease the lid 7G- andV permit it to be opened.4 j

The cap -45- covering the upper open end of the cage -42- is centrallyjournaled by anti-friction bearings --76- upon a suitable supportinstud.77- on the underside of the lid 0- so that when frictionallyengaged with the upper end of the cage it will rotate freely therewithand vwill also serve to hold the cage against excessive vibration incase the clothes therein should be slightly. heavier on one side than onthe other while the cage is being rotated at high speed.

' The upright perforated walls of the cage -42- are arranged insufficiently spaced relation to the inclosing walls of the vat 7 topermit the washing or rinsing fluid to be thrown by centrifugal forcefrom the clothes through the perforated side walls of the cage 10g andinto the surrounding portions ofthe vat as the cage is rotated, the gearratio of the driving mechanism for the ca e being such as to rotatesaid: cage at a s ciently high speed to expel practically all of themoisture 105 from the clothes by centrifugal force so that after acomparatively brief period of operation the clothes arepracticall dryand more or less iuify ready for smoot ing by a suitable ironingmechanism.

Suitable means is also provided for assisting this centrifugal drying ofthe clothes dur ing the rotation of the cage and for this purpose thelid .70- 'is provided with a circumferential series of o enings 7S-while 115 the cover plate -45- or the ca e -42- is(Y l also providedwith openings 9 vthere- A through and a circumferential series of vanesor ribs -80- extending outwardly from the center thereof and preferablyon the upper face of the cover 4 5- and arranged so as to create circul`tion of air from the top downwardly throug/li the openings -78'- and 79and th/ence throu h the clothes in the revolving cage and out t roughthe perforations in the side walls of said cagevinto the outer containerfrom which it is drawn into andfthrough the pump, it being understoodcenter and against the perforated walls. the] ure 4 that the brake` shoe-59- operates di` rectly against the brake surface -57- of the brakedrum -.57- to disengage the clutch member -56- fromthe clutch gear '-18-agalnst the action of the retracting spring 58 which serves to retractboth the clutch member -56- and brake drum .-57- under which conditionsthe application of the brake simultaneously with the. withdrawal of thelclutch member -56- will retard and stop the rotation of the shafts -20-and -20 and 4cage 42- driven thereby, all of which greatly ex editesthecentrifugal drying operation an enables both the brake and `clutch tobe. controlled by the same lever -68- which is coaxial with and inproximity to the washer controlling lever -41- as Ashown in Figure 2thus permitting both levers to be operated from the `same side of themachine.

This proximate coaxial operation of the two.

levers 4land G9- also permits the use of coaxial detents 81e and aninterposed coiled spring -.-82- arranged within a socket inthe adjacentportion of the frame.f67- for en 'aging in recesses in the adjacentfacesof the evers 4land G8- to frictionaly holdfthem in their differentpositions of a lustment, the shaft 66- and lever 6811- I carried therebyhaving slightly vertical movement against the action of a retractingspring -83- between the hubs of the crank arms -.38 and -65- to adjustthe engagement of the extension -,68 with4 the upper face of the lid--'70-` when the latter is closed and also to assist in frictionallyholding the shaft -66- and tubular` shaft 139- against 4accidentaldisplacement' from. their adjusted of the vats- -6- and 450 positions. eFlu/icl circulating Suitablemeans is provided for withdrawing thewashing or rinsing uid from both -7 and also for transferring the 'sudsor other fluidfrom the ldrier vat to the washing vat and for thesepurposes' the bottom of the washing vat -6- is provided with an ,outletnipple S4- to whlch is connected one end ofa valve case S5- having itsother end connected by a ing, in this instance, a lpart of the gearcase- 16 as shown more clearly in Figures 6 and 7. The) conduitl 8G-'-is connected by a branch -89- to an opening -90-- 1n the *bottoml of thedrier vat --7 to form a liquid tight joint therewith therebyestablishing o en communication between the interior of t e .drier vat-7- and inlet -87- of the pump -88-, see Figures 6 and 13.

The inlet opening of the valve case -85- is controlled by a valve -91-which is yieldlngly mounted upon a crank arm 92- of a rock shaft -93-,the latter being journaled fin'one side of the valve case -85- andprovided with an external hand lever 94- by which the valve may beopened and closed at y will Ias may be required to retain or todischarge the water in and from the vat -.6-.

The outlet side of the pump -8- is'connected by conduit 95,- and nipple95'- said valve chamber having branch openings -97and -97' leading fromopposite sides thereof and controlled by a hollow valve -98- having anexternal operating member -98' and a radial opening -99- which maybebrought into registration with one or v the other of the branch passages-97- or 97?- to vary the direction offlow of water from the valvechamber. n

The branch passage Q7- is connected by an elbow -100-- to an inletopening in one side of the washing vat 6- near the upper end thereofwhile'the branch passage 97'- is connected to a dischargenozzlelOladapted to discharge over a water table 10Q-- into a stationarylaundry tray -KA- or'other receptacle.

In Figures 6 and 11 the valve 4-98- is adjusted to divert theywatersfrom the pump into the nozzle -10` but by turning it onehalf turnthe opening -99- may be registered'with the branch -97- to divert thewater 'from the pump back into the washing -101- into a suitablereceptacle as the.

vat -A--L Operation The clothes to be washed together' with a suitablewashing flui formingwhat may neath the cups '.-8- unfder whichconditions the valve -91-fwill, f course, be closed to retain thewashing Huid in the vat.

by the operation of any suitable controlling switch thereby operatingthe Vpump S8-,-

The electric motor L12- is then started.

toa valve chamber -96- in the frame -67-, I 80 be termed suds, is placeiin the vat -6'- bei with the clothes.

Throwing the clutch gear -21 into engagement with the clutch member -23-will cause the operation of the lever -27- and plunger -10- carrying thecups -8- for washmg the clothes in the vat by alternate pressure 'andsuction as the cups are reciprocated vertically into and out ofengagement A Jrictionally engaged with the upper edge of the cage 42- torotate therewith, it being understood that the lid 70 will then be rmlyheld against rotary movement. A

The lever '68- and its rock shaft 6G- are then turned in the properdirection for releasing the brake shoe -59- and simultaneously engagingthe clutch 56- with the clutch gear -18- for transmitting rotary motionfrom said gear to the shaft 20- and thence through the shaft -20- andupward shaft 5G- to the cage 42- which with the wet clothes therein 1sdriven atrela- `tively high speed to expel practically all of themoisture from the clothes through the perforted walls of the cage andinto the vat c e As previously stated, the lower end of the vat is inopen communication with the inlet side of the pump -88 through the pipe-l--S- and owing to the continued o eration ofthe pump -88- the washinguid accumulating in the vat -7- will be vwithdrawn therefrom and .forcedthrough the pipe -95- into the valve chamber -96- and y adjusting thevalve 98 to the position shown in Figures 6 and 1l the washin fluidywithdrawn from the vat -7 will be orced outwardly through the passage-97 and laundry trays -A- or into any other suitable receptacle or wastepi e.

Or, if 1t is desired to withdraw the washing fluid from the vat -6- itmay be accompllshed by simply o ening the valve -91- and allowing theuid in the vat topass through the conduit '-86- into the inlet Aside ofthe (pump '-88 from which it will be ex elle through the pipe -95- intothe lva ve chamber and thence out through the 0n the other hand,assumingthat it is desired to return the suds water accumulating in the vat -7-and that the valve-91-vis memes closed the .valve -98- may be reversedto cut off communication between the conduit -95- and branch -97- and toopen communication between said conduit and the branch -97- thuspermitting the water to be thrown directly from the drying vat -7- anddischarged intovthe upper portion of the washing vat -6- thuspermittinhe reuse ofthe same suds as long as may desired Without varyingthe amount of water in the washing vat and at the'same time maintaininga continuous withdrawal of the fluid from A the clothes in the dryingvat.

1t will be evident from the foregoing description that as soon as thepreviously washed clothes have been transferred from the washing vat -6-to the drier cage 42- and during the centrifugal drying operation anadditional batch of soiled clothes may be laced in the washing vat and oerated upon y the washing mechanism wit out disturbing the operation ofthe drier cage, all of which greatly increases the out ut of the ma- 1chine and efects a complete was in and dry- -ing of the clothes with theeXpen iture of a minimum amount of labor and expense and withoutliability of injuring the finest of fabrics or mutilation of any partsthereof and at the same time permitting either mechanism to be operatedindependentlyy of the other or simultaneously as may berequired'.

We claim: y 1. ln a high speed rotary extractor mechanism, a vat, aclothes container positioned in the vat, drivingmechanism below the vatfor rotating the clothes container and including a clutch mechanism formaking and breaking the driving connection, a rock shaft-extendingvertically at one side of the vat and lconnected to said clutchmechanism lbelow the vat, a cover for the vat, a member secured to .thevertical shaft and turnin therewith 'as the clutch is moved to operativeand inoperative position, said member being disposed in such relationwith res ect to the rock shaft that it is moved over t e cover to reventopening of the cover when the clutch 1s moved in the operative positionby rocking of said shaft and so that the member is disposed at oneside'of the cover when the clutch member is moved to inoperative posi-4tion by reverse rocking of said shaft, said member constituting ahandle for rocking said shaft, and additional means actuated by therocking of said shaft in the direction to render the clutch inoperativeto rapidlyredu'ce the speed of rotation of the container.

2. In a high speed rotary extractor mechanism, a vat, a clothescontainer positioned in the vat, driving mechanism below the vat forrotating the clothes container and including a clutch mechanism formaking andbreaking the driving connection, a rock shaft extendingvertically at one' side of the vat and connected to said clutchmechanism below the vat,a vcover for the vat, a member secured to thevertical shaft and turning therewith as the-clutch is moved to operativeand inoperative position, said member being disposed in such relationwith respect to the rock shaft that it is moved over the cover toprevent opening of the cover when the clutch is moved in the operativeposition by rocking of said shaft, and so that the member is disposed atone side of the cover when the clutch member is moved to inoperativeposition by reverse rocking of said shaft, an additional means actuatedby the rocking of said shaft in the direction to render the clutchinoperative to v rapidly reduce the speed of rotation of the container.

In witness whereof we have hereunto set vour hands this 11th day ofJanuar 1928.

JABEZ C. NEL ON. PETER E'. GELDHOF.

